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First occurrence of a mawsoniid (Sarcopterygii: Actinistia), Mawsonia soba sp nov., in pre-Aptian Cretaceous deposits from Cameroon
被引:6
|作者:
Brito, Paulo M.
[1
]
Cupello, Camila
[1
]
Yabumoto, Yoshitaka
[2
]
Hell, Joseph V.
[3
]
Brunet, Michel
[4
,5
]
Otero, Olga
[4
]
机构:
[1] Univ Estado Rio de Janeiro, Dept Zool, Rua Sao Francisco Xavier, Rio De Janeiro, Brazil
[2] Kitakyushu Museum Nat Hist & Human Hist, Dept Nat Hist, Yahatahigashi Ku, 2-4-1 Higashida, Kitakyushu, Fukuoka 8050071, Japan
[3] Inst Rech Geol & Minieres Cameroun, BP 4140, Yaounde, Cameroon
[4] Univ Poitiers, Lab Paleontol Poitiers, UMR 7262, Bat B35,TSA51106, Poitiers, France
[5] Coll France, Chaire Paleontol Humaine, Rue Ecoles, Paris, France
关键词:
Coelacanth;
Mawsonia;
Babouri Figuil Basin;
Western Gondwana;
Lower Cretaceous;
COELACANTH;
REMAINS;
BRAZIL;
BASIN;
D O I:
10.1016/j.cretres.2017.12.014
中图分类号:
P5 [地质学];
学科分类号:
0709 ;
081803 ;
摘要:
Coelacanth remains from the Lower Cretaceous (pre-Aptian) freshwater deposits of the Babouri Figuil Basin, Northern Cameroon are described as a new taxon Mawsonia soba sp. nov. based on two characters: four openings in the dentary for the branch of the trigeminal nerves and an extremely rugose and disorganized ornamentation of the bones. M. soba sp. nov. known by some three-dimensionally partially preserved specimens represents the first actinistian described from Cameroon. This discovery attests the presence of Mawsonia in the African counterpart of the continental pre-rift and rift environments where only Brazilian members were known so far. The fact that the Cameroonian coelacanth belongs to a new species suggest a certain endemism at least in this African basin. (C) 2017 Elsevier Ltd. All rights reserved.
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页码:91 / 96
页数:6
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